Osi model

Learning objectives of this chapter include: Understand the architecture of the OSI model, understand the layers of the OSI model and their functions, understand the architecture of the TCP/IP Protocol Suite, differentiate between the OSI model and the TCP/IP Suite, differentiate between the three types of Internet addresses.

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Tham khảo tài liệu 'osi model', công nghệ thông tin, quản trị mạng phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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Các bạn học sinh và quý thầy cô tham khảo miễn phí Đề thi chứng chỉ quốc tế ngành công nghệ thông tin lĩnh vực CCNA – OSI Model Questions để hệ thống kiến thức học tập cũng như trau dồi kinh nghiệm ra đề thi

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This diagram illustrates the Physical layer (Layer 1) of the OSI model. The Physical layer is responsible for the ultimate transmission of data over network communications media. It operates with data in the form of bits that are sent from the Physical layer of the sending (source) device and received at the Physical layer of the destination device. Ethernet cabling, Token Ring network technology and SCSI all function at the Physical layer of the OSI model. Hubs and other repeaters are standard network devices that function at the Physical layer.

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The Open Systems Interconnection (OSI) model is a reference tool for understanding data communications between any two networked systems. It divides the communications processes into seven layers. Each layer both performs specific functions to support the layers above it and offers services to the layers below it. The three lowest layers focus on passing traffic through the network to an end system. The top four layers come into play in the end system to complete the process.

11p huyhoang 06-08-2009 139 52   Download

Mô hình OSI mô tả phương thức truyền tin từ các chương trình ứng dụng của một hệ thống máy tính đến các chương trình ứng dụng của một hệ thống khác thông qua các phương tiện truyền thông vật lý. Thông tin từ một ứng dụng trên hệ thống máy tính A sẽ đi xuống các lớp thấp hơn, cuối cùng qua các thiết bị vật lý đến hệ thống máy tính B. Sau đó ở hệ thống B, thông tin sẽ đi từ lớp thấp nhất đến cao nhất - chính là ứng dụng của hệ thống máy tính...

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Mô hình OSI (Open Systems Interconnection Reference Model, viết ngắn là OSI Model hoặc OSI Reference Model) - tạm dịch là Mô hình tham chiếu kết nối các hệ thống mở - là một thiết kế dựa vào nguyên lý tầng cấp, lý giải một cách trừu tượng kỹ thuật kết nối truyền thông giữa các máy vi tính và thiết kế giao thức mạng giữa chúng...

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Responsible for program to program communication • Provides services directly to applications, such as electronic mail, file transfer and terminal emulation • Responsible for identifying and establishing the availability of the intended partner and required resources • Responsible for determining if sufficient communication resources exist to reach the remote partner

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This lab will help to develop a better understanding of the seven layers of the OSI model. Specifically as they relate to the most popular functioning networking model in existence, the TCP/IP model. The Internet is based on TCP/IP. TCP/IP has become the standard language of networking. However, the seven layers of the OSI model are the ones most commonly used to describe and compare networking software and hardware from various vendors. It is very important to know both models and be able to relate or map the layers of one to the other.

1p thanhha 27-08-2009 137 25   Download

Tham khảo tài liệu 'lab 2.3.7 osi model characteristics and devices', công nghệ thông tin, quản trị mạng phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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Networking Standards and the  OSI Model Identify organizations that set standards for networking. Describe the purpose of the OSI Model and each of its layers Explain specific functions belonging to each OSI Model layer Understand how two network nodes communicate through the OSI model Discuss the structure and purpose of data packets and frames. Describe the two types of addressing covered by the OSI Model.

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Network Protocols Identify the characteristics of TCP/IP, IPX/SPX, NetBIOS, and AppleTalk Understand how network protocols correlate to layers of the OSI Model Identify the core protocols of the TCP/IP suite and describe their functions Identify the well-known ports for key TCP/IP services Understand addressing schemes for TCP/IP, IPX/SPX, NetBEUI, and AppleTalk Describe the purpose and implementation of DNS (Domain Name System) and WINS (Windows Internet Naming Service) Install protocols on Windows XP clients...

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Networking Hardware Identify the functions of LAN connectivity hardware Install and configure a NIC (Network Interface Card) Identify problems associated with connectivity hardware Describe the factors involved in choosing a NIC, hub, switch, or router Discuss the functions of repeaters, hubs, bridges, switches, routers, and gateways, and the OSI Model layers at which they operate Describe the use and types of routing protocols

48p itvovantien 13-07-2012 57 10   Download

Mô hình OSI (Open Systems Interconnection Reference Model, viết ngắn là OSI Model hoặc OSI Reference Model) - tạm dịch là Mô hình tham chiếu kết nối các hệ thống mở - là một thiết kế dựa vào nguyên lý tầng cấp, lý giải một cách trừu tượng kỹ thuật kết nối truyền ...

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Data can be corrupted during transmission. For reliable communication, error must be detected and corrected are implemented either at the data link layer or the transport layer of the OSI model.Error detection uses the concept of redundancy, which means adding extra bits for detecting errors at the destination

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Chapter 3 Application Layer Functionality and Protocols .Overview Describe how the functions of the three upper OSI model layers provide network services to end user applications. Describe how the TCP/IP Application Layer protocols provide the services specified by the upper layers of the OSI model. Define how people use the Application Layer to communicate acrossthe information network. Describe the function of well-known TCP/IP applications, such as the World Wide Web and email, and their related services (HTTP, DNS,SMB, DHCP, STMP/POP, and Telnet).

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Chapter 2 introduce Networking standards and the OSI model. This chapter objectives: Identify organizations that set standards for networking, describe the purpose of the OSI model and each of its layers, explain specific functions belonging to each OSI model layer,...

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Upon completion of this lesson, the successful participant will be able to understanding the Host-to-Host Communications Model, understanding why a Layered Network Model, understanding the seven layers of the OSI Model,... Inviting you to refer.

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The two dominant networking models are the Open Systems Interconnection (OSI) and the Internet model (TCP/IP).The first is a theoretical framework; the second is the actual model used in today's data communications. In Chapter 2, we first discuss the OSI model to give a general background. We then concentrate on the Internet model, which is the foundation for the rest of the lecture.

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